提出 #64526028
ソースコード 拡げる
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
i64 floor_sqrt(i64 k) {
i64 l = 0, r = 1e9 + 1;
while (l < r) {
i64 mid = l + (r - l + 1) / 2;
if (mid <= k / mid) {
l = mid;
} else {
r = mid - 1;
}
}
return l;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
i64 n;
cin >> n;
i64 sum = 0;
for (int i = 1; i <= 60; i ++ ) {
i64 pow2 = (1LL << i);
i64 k = n / pow2;
if (k == 0) break;
i64 m = floor_sqrt(k);
i64 num = (m + 1) / 2;
sum += num;
}
cout << sum << "\n";
return 0;
}
提出情報
| 提出日時 | |
|---|---|
| 問題 | C - 2^a b^2 |
| ユーザ | spontaneity |
| 言語 | C++ 20 (gcc 12.2) |
| 得点 | 350 |
| コード長 | 710 Byte |
| 結果 | AC |
| 実行時間 | 1 ms |
| メモリ | 3628 KiB |
ジャッジ結果
| セット名 | Sample | All | ||||
|---|---|---|---|---|---|---|
| 得点 / 配点 | 0 / 0 | 350 / 350 | ||||
| 結果 |
|
|
| セット名 | テストケース |
|---|---|
| Sample | example_00.txt, example_01.txt, example_02.txt |
| All | example_00.txt, example_01.txt, example_02.txt, hand_00.txt, hand_01.txt, hand_02.txt, hand_03.txt, hand_04.txt, hand_05.txt, hand_06.txt, hand_07.txt, hand_08.txt, hand_09.txt, hand_10.txt, random_00.txt, random_01.txt, random_02.txt, random_03.txt, random_04.txt, random_05.txt, random_06.txt, random_07.txt, random_08.txt, random_09.txt, random_10.txt, random_11.txt, random_12.txt, random_13.txt, random_14.txt |
| ケース名 | 結果 | 実行時間 | メモリ |
|---|---|---|---|
| example_00.txt | AC | 1 ms | 3496 KiB |
| example_01.txt | AC | 1 ms | 3560 KiB |
| example_02.txt | AC | 1 ms | 3480 KiB |
| hand_00.txt | AC | 1 ms | 3552 KiB |
| hand_01.txt | AC | 1 ms | 3560 KiB |
| hand_02.txt | AC | 1 ms | 3432 KiB |
| hand_03.txt | AC | 1 ms | 3576 KiB |
| hand_04.txt | AC | 1 ms | 3436 KiB |
| hand_05.txt | AC | 1 ms | 3556 KiB |
| hand_06.txt | AC | 1 ms | 3572 KiB |
| hand_07.txt | AC | 1 ms | 3628 KiB |
| hand_08.txt | AC | 1 ms | 3480 KiB |
| hand_09.txt | AC | 1 ms | 3428 KiB |
| hand_10.txt | AC | 1 ms | 3492 KiB |
| random_00.txt | AC | 1 ms | 3436 KiB |
| random_01.txt | AC | 1 ms | 3420 KiB |
| random_02.txt | AC | 1 ms | 3500 KiB |
| random_03.txt | AC | 1 ms | 3492 KiB |
| random_04.txt | AC | 1 ms | 3488 KiB |
| random_05.txt | AC | 1 ms | 3416 KiB |
| random_06.txt | AC | 1 ms | 3552 KiB |
| random_07.txt | AC | 1 ms | 3440 KiB |
| random_08.txt | AC | 1 ms | 3480 KiB |
| random_09.txt | AC | 1 ms | 3496 KiB |
| random_10.txt | AC | 1 ms | 3484 KiB |
| random_11.txt | AC | 1 ms | 3432 KiB |
| random_12.txt | AC | 1 ms | 3492 KiB |
| random_13.txt | AC | 1 ms | 3420 KiB |
| random_14.txt | AC | 1 ms | 3556 KiB |